Combustion Gases in Highly Preheated Air (HiTAC) Technology

• Autorzy: Dobski T. , Ślefarski R. , Jankowski R.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with combustion of typical industrial gases in configurations characterized by the separation of the jets of gas and air flowing into the combustion chamber. The experiments involved three types of fuel gases: LPG, high methane natural gas and low calorific natural gases. The low calorific gases were composed as mixture of the natural gas (containing about 97% methane, less than 1 per cent of highest hydrocarbons and nitrogen) and nitrogen as inert gas. The experiment involved fuels as poor as containing only 50% of combustible gases (LHV lower than 18 MJ/Nm3). The results of investigation of combustion a gases in regenerative burner are presented in the paper. The paper presents also data from the burning of the above gases in a Semi Industrial Gas Burner (SIGB). Such a burner consists of a pipe carrying highly preheated air and at least two nozzles providing the gas. The data include the geometry of SIGB, the level of air preheating and the density of heat release. Generally, the investigation shows that for the temperature of preheated air over 650oC (a typical temperature for central recuperators in industrial gas furnaces) and temperature of furnace 1250oC it is possible to lower the emission of pollutant NOx over 3.5 times. The paper also presents some data on combustion of LPG at an industrial furnace equipped with the set of SIGB gas burner. The furnace was built for heat treatment of steel to process 80 t/h at over 1200oC. There were 17 sets of gas burners on the furnace.

Słowa kluczowe

EN

combustion gases; LPG

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2008
• Tom: Vol. 28 nr 3-4
• Strony: 173--185
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Dobski T.

autor

Ślefarski R.

autor

Jankowski R.

• Gas Technology Laboratory, Poznan University o Technology,

Bibliografia

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